2176225663 has 4 divisors (see below), whose sum is σ = 2184256288. Its totient is φ = 2168195040.

The previous prime is 2176225651. The next prime is 2176225673. The reversal of 2176225663 is 3665226712.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2176225663 - 2⁹ = 2176225151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2176225613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4014906 + ... + 4015447.

It is an arithmetic number, because the mean of its divisors is an integer number (546064072).

Almost surely, 2^2176225663 is an apocalyptic number.

2176225663 is a deficient number, since it is larger than the sum of its proper divisors (8030625).

2176225663 is an equidigital number, since it uses as much as digits as its factorization.

2176225663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8030624.

The product of its digits is 181440, while the sum is 40.

The square root of 2176225663 is about 46650.0339013810. The cubic root of 2176225663 is about 1295.8895143374.

The spelling of 2176225663 in words is "two billion, one hundred seventy-six million, two hundred twenty-five thousand, six hundred sixty-three".